Overview

overview

10

Static

static

10

8a3e7b4e29...71.exe

windows10-2004-x64

10

8a3e7b4e29...71.exe

windows11-ltsc_2024-x64

10

Analysis

  • max time kernel
    148s
  • max time network
    147s
  • platform
    windows11-ltsc_2024_x64
  • resource
    win11ltsc2024-20260709-en
  • resource tags

    arch:x64arch:x86image:win11ltsc2024-20260709-enlocale:en-usos:windows11-ltsc_2024-x64systemwindows
  • submitted
    11/07/2026, 14:28

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General

  • Target
    8a3e7b4e2999649ebc1f45c623175e42bfeed168b97213a7ca3cb2c6c67c3071.exe
  • Size 45KB
  • Sample260711-rtcyyset21
  • SHA256 8a3e7b4e2999649ebc1f45c623175e42bfeed168b97213a7ca3cb2c6c67c3071
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defaultdefense_evasiondiscoveryexecutionasyncratpersistencerat

Malware Config

Extracted

Family

  • asyncrat

Version

  • 0.5.8

Botnet

  • Default

C2

  • mephimsexhay.com:80

  • mephimsexhay.com:22

  • mephimsexhay.com:8080

  • mephimsexhay.com:8880

  • mephimsexhay.com:2052

  • mephimsexhay.com:2082

  • mephimsexhay.com:2086

  • mephimsexhay.com:2095

  • mephimsexhay.com:443

  • mephimsexhay.com:2053

  • mephimsexhay.com:2083

  • mephimsexhay.com:2087

  • mephimsexhay.com:2096

  • mephimsexhay.com:8443

  • www.mephimsexhay.com:80

  • www.mephimsexhay.com:22

  • www.mephimsexhay.com:8080

  • www.mephimsexhay.com:8880

  • www.mephimsexhay.com:2052

  • www.mephimsexhay.com:2082

Mutex

  • hBnBdrfmiFqC

Attributes
  • delay

    0

  • install

    true

  • install_file

    up3zpv.exe

  • install_folder

    %AppData%

aes.plain

Signatures

  • Family: AsyncRat

    AsyncRAT is designed to remotely monitor and control other computers written in C#.

    ratasyncrat
  • Async RAT payload 1 IoCs
    rat
  • Executes dropped EXE 2 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 7 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Delays execution with timeout.exe 1 IoCs
    defense_evasion
  • Scheduled Task/Job: Scheduled Task 1 TTPs 1 IoCs

    Schtasks is often used by malware for persistence or to perform post-infection execution.

    persistenceexecution
  • Suspicious behavior: EnumeratesProcesses 29 IoCs
  • Suspicious use of AdjustPrivilegeToken 2 IoCs
  • Suspicious use of WriteProcessMemory 5 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\8a3e7b4e2999649ebc1f45c623175e42bfeed168b97213a7ca3cb2c6c67c3071.exe
    "C:\Users\Admin\AppData\Local\Temp\8a3e7b4e2999649ebc1f45c623175e42bfeed168b97213a7ca3cb2c6c67c3071.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of WriteProcessMemory
    PID:4188
    • C:\Windows\SysWOW64\cmd.exe
      "C:\Windows\System32\cmd.exe" /c schtasks /create /f /sc onlogon /rl highest /tn "up3zpv" /tr '"C:\Users\Admin\AppData\Roaming\up3zpv.exe"' & exit
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2232
      • C:\Windows\SysWOW64\schtasks.exe
        schtasks /create /f /sc onlogon /rl highest /tn "up3zpv" /tr '"C:\Users\Admin\AppData\Roaming\up3zpv.exe"'
        3⤵
        • System Location Discovery: System Language Discovery
        • Scheduled Task/Job: Scheduled Task
        PID:4172
    • C:\Windows\SysWOW64\cmd.exe
      C:\Windows\system32\cmd.exe /c ""C:\Users\Admin\AppData\Local\Temp\tmpAED4.tmp.bat""
      2⤵
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      PID:2908
      • C:\Windows\SysWOW64\timeout.exe
        timeout 3
        3⤵
        • System Location Discovery: System Language Discovery
        • Delays execution with timeout.exe
        PID:4748
      • C:\Users\Admin\AppData\Roaming\up3zpv.exe
        "C:\Users\Admin\AppData\Roaming\up3zpv.exe"
        3⤵
        • Executes dropped EXE
        • System Location Discovery: System Language Discovery
        PID:5108
  • C:\Users\Admin\AppData\Roaming\up3zpv.exe
    "C:\Users\Admin\AppData\Roaming\up3zpv.exe"
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of AdjustPrivilegeToken
    PID:1720
  • C:\Windows\system32\svchost.exe
    C:\Windows\system32\svchost.exe -k GPSvcGroup
    1⤵
      PID:4152

    Network

          MITRE ATT&CK Enterprise v16

          Replay Monitor

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          Downloads

          tmpAED4.tmp.bat
          • Path C:\Users\Admin\AppData\Local\Temp\tmpAED4.tmp.bat
          • Size 150B
          • SHA256 23b87fa9f54469d55c5b09fd7f7c286ca1ec1f9a5db5c79847215680fb257ce9
          • MD5 SHA1 SHA512 TLSH
          Submit Download

          up3zpv.exe
          • Path C:\Users\Admin\AppData\Roaming\up3zpv.exe
          • Size 45KB
          • SHA256 8a3e7b4e2999649ebc1f45c623175e42bfeed168b97213a7ca3cb2c6c67c3071
          • MD5 SHA1 SHA512 SSDEEP TLSH
          Submit Download

          memory/1720-12-0x00000000748C0000-0x000000007507C000-memory.dmp
          Download

          memory/1720-14-0x00000000748C0000-0x000000007507C000-memory.dmp
          Download

          memory/4188-0-0x0000000074A42000-0x0000000074A43000-memory.dmp
          Download

          memory/4188-1-0x0000000000160000-0x0000000000172000-memory.dmp
          Download

          memory/4188-2-0x0000000074A30000-0x00000000751EC000-memory.dmp
          Download

          memory/4188-3-0x0000000004CD0000-0x0000000004D6C000-memory.dmp
          Download

          memory/4188-8-0x0000000074A30000-0x00000000751EC000-memory.dmp
          Download